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Soldiers Grave, Bonvilston

In the community of St Nicholas And Bonvilston.
In the historic county of Glamorgan.
Modern authority of Vale of Glamorgan.
Preserved county of South Glamorgan.

OS Map Grid Reference: ST07057334
Latitude 51.45145° Longitude -3.33904°

Soldiers Grave, Bonvilston has been described as a probable Timber Castle.

There are earthwork remains.

This site is a scheduled monument protected by law.


Oval ringwork 36m by 30m on flat low lying site. (Salter)

Oval ringwork surrounded by a bank 10ft above the wet ditch, and associated earthworks, possibly a bailey or burgus. A sub-oval enclosure, c.40m NW-SE by 30m, defined by a bank and ditch. Thought to be an early medieval castle enclosure, abandoned by c.1250 when the land hereabouts was granted to Margam Abbey. (Coflein)

The monument comprises the remains of a well preserved castle-ringwork, which dates to the early part of the medieval period (c. AD 1066 - 1485). There is no medieval record of the castle, but it was probably built by the de Bonville family. The site is located 850m south-east of the village of Bonvilston on low-lying marshy ground at the confluence of Nant Carfan and a minor tributary. The ringwork is roughly oval in shape on plan, but the north corner is distinctly right-angled. It measures 70m in length north-south by 55m in width transversely. The enclosing bank measures a maximum of 2m in height and stands above a wet ditch, which measures a maximum of 5m in width and 1.5m in depth. The flat internal area measures 51m north-south by 37m transversely and gently slopes to the south. The entrance is probably located on the east side, where a simple gap in the bank is accessed via a causeway across the ditch. (Scheduling Report)

Hogg and King rejected this site in 1970 but accepted as castle site by King in 1983 although described as "shapeless and overgrown earthwork in very marshy site'.
Was this the site of a small village and manorial centre set up during a dry climatic period subsequently abandoned when the site became marshy?
Links to archaeological and architectural databases, mapping and other online resources

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Sources of information, references and further reading
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This record last updated 06/07/2016 18:08:18